WO2023021644A1 - Elevator car and elevator - Google Patents

Elevator car and elevator Download PDF

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Publication number
WO2023021644A1
WO2023021644A1 PCT/JP2021/030316 JP2021030316W WO2023021644A1 WO 2023021644 A1 WO2023021644 A1 WO 2023021644A1 JP 2021030316 W JP2021030316 W JP 2021030316W WO 2023021644 A1 WO2023021644 A1 WO 2023021644A1
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WO
WIPO (PCT)
Prior art keywords
car
pulley
floor
support beam
floor support
Prior art date
Application number
PCT/JP2021/030316
Other languages
French (fr)
Japanese (ja)
Inventor
好貴 戸村
智貴 仮屋
Original Assignee
株式会社日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to PCT/JP2021/030316 priority Critical patent/WO2023021644A1/en
Priority to JP2023542117A priority patent/JP7531722B2/en
Priority to EP21954217.2A priority patent/EP4389673A1/en
Priority to CN202180101534.1A priority patent/CN117794841A/en
Priority to TW111131092A priority patent/TWI830336B/en
Publication of WO2023021644A1 publication Critical patent/WO2023021644A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0206—Car frames

Definitions

  • the present invention relates to cars and elevators.
  • elevator cars are equipped with tie rods that suppress tilting of the car floor.
  • the car floor is supported by floor support beams.
  • the inclination of the car floor is suppressed by applying an upward force to the floor support beams via the tie rods.
  • the technology described in Patent Document 1 is known.
  • the car outer dimension is the dimension planned for installing equipment other than the car on the hoistway (hereinafter referred to as "hoistway equipment"), and as long as the car is designed within this planned dimension, There is no interference between the car and hoistway equipment. For this reason, equipment such as counterweights, which are one type of hoistway equipment, are designed to fit between the car exterior and the walls of the hoistway.
  • hoistway equipment equipment such as counterweights, which are one type of hoistway equipment
  • the protrusion of the tie rod imposes restrictions on the layout and design of the hoistway equipment. Also, at construction sites where elevator installation work is carried out, it is necessary to check whether the elevator car and hoistway equipment interfere with each other, and if they interfere, review the layout of the hoistway equipment and the structure of the elevator car.
  • An object of the present invention is to provide a car and an elevator capable of suppressing inclination of the car floor without providing tie rods.
  • the present application includes a plurality of means for solving the above problems.
  • One of them is a car frame having a pair of vertical frames and a lower frame connecting the lower ends of the pair of vertical frames, and a car floor.
  • a connection member that connects the vertical frame and the floor support beam.
  • This car has a structure in which an upward force applied to the pulley support member and the floor support beam by the main rope wound around the pulley under the car is received by the connecting member and the vertical frame.
  • FIG. 1 is a schematic configuration diagram of an elevator according to an embodiment
  • FIG. It is a perspective view showing the appearance of the car concerning an embodiment. It is the figure which looked at the car shown in FIG. 2 from the diagonally downward direction. It is a figure which shows the structure of an anti-vibration part. It is the figure which looked at the principal part of the car shown in FIG. 2 from the left-right direction. It is the figure which looked at the principal part of the car shown in FIG. 2 from the diagonal direction. It is a figure which shows the structure of an intermediate member. It is a schematic diagram which shows the car which concerns on a comparative form. It is a mimetic diagram showing a car concerning an embodiment.
  • FIG. 1 is a schematic configuration diagram of an elevator according to an embodiment.
  • the elevator includes a hoisting machine 1 , a main rope 2 , a car 3 , a counterweight 5 and a pulley 6 .
  • the car 3 has a pair of under-car pulleys 4A and 4B. The car 3 ascends and descends on the hoistway 50 according to the movement of the main rope 2 wound around the pair of lower car pulleys 4A and 4B.
  • the hoist 1 is a device that hoists the main rope 2 in order to raise and lower the car 3.
  • the hoisting machine 1 is installed above the hoistway 50 .
  • One end and the other end of the main rope 2 are fixed to the top of the hoistway 50, respectively.
  • the main rope 2 is wound around a pair of under-car pulleys 4A and 4B, the hoisting machine 1, and a pulley 6. - ⁇
  • the car 3 ascends and descends while being guided by a pair of guide rails (not shown).
  • a pair of under-car pulleys 4A and 4B are arranged below the car 3 .
  • the counterweight 5 is a weight for reducing the load on the hoisting machine 1 by balancing the mass with the car 3 .
  • the counterweight 5 moves up and down in the opposite direction to the car 3 when the main rope 2 is hoisted by the hoisting machine 1 .
  • the pulley 6 is arranged above the counterweight 5 and moves up and down
  • FIG. 2 is a perspective view showing the appearance of the car according to the embodiment.
  • each direction of front and back, up and down, left and right is defined with reference to the line of sight of the elevator user facing the car 3 .
  • the front side is the front
  • the back side is the rear
  • the upper side is the upper side
  • the lower side is the lower side
  • the left side is the left side
  • the right side is the right side.
  • the car 3 includes a car frame 7 and a car room 8 arranged inside the car frame 7 .
  • the car room 8 has an accommodation space inside for carrying luggage and people.
  • the car room 8 is formed by a car floor 12 , side plates 13 and a ceiling 15 .
  • the car floor 12 and the ceiling 15 are arranged to face each other in the vertical direction with the accommodation space interposed therebetween.
  • the side plates 13 are arranged so as to surround the storage space on all sides except for the car door 18 portion.
  • the car frame 7 is formed in a vertically long rectangle when viewed from the front-rear direction.
  • the car frame 7 is arranged so as to surround the car room 8.
  • the car frame 7 includes an upper frame 9 arranged above the car chamber 8, a lower frame 10 arranged below the car chamber 8 (see FIG. 3), and It has a pair of vertical frames 11A and 11B.
  • the upper frame 9 is a member that extends long in the left-right direction.
  • the upper frame 9 extends horizontally between the upper ends of the pair of vertical frames 11A and 11B.
  • One longitudinal end of the upper frame 9 is fixed to the upper end of the vertical frame 11A, and the other longitudinal end of the upper frame 9 is fixed to the upper end of the vertical frame 11B.
  • the upper ends of the pair of vertical frames 11A and 11B are connected by the upper frame 9. As shown in FIG.
  • a pair of vertical frames 11A and 11B are arranged to face each other in the left-right direction.
  • Each of the vertical frames 11A and 11B is a member elongated in the vertical direction.
  • Each vertical frame 11A, 11B is supported by the pair of guide rails described above.
  • the guide rail is an elongated member installed vertically on the wall of the hoistway 50 .
  • the lower frame 10 is arranged at a position facing the upper frame 9 with the car room 8 interposed therebetween.
  • the lower frame 10 is a member that extends long in the left-right direction.
  • the lower frame 10 spans horizontally between the lower ends of the pair of vertical frames 11A and 11B.
  • One longitudinal end of the lower frame 10 is fixed to the lower end of the vertical frame 11A, and the other longitudinal end of the lower frame 10 is fixed to the lower end of the vertical frame 11B.
  • the lower ends of the pair of vertical frames 11A and 11B are connected by the lower frame 10. As shown in FIG.
  • the lower frame 10 supports the car floor 12 via a pair of floor support beams 14A and 14B.
  • a pair of floor support beams 14A and 14B are beams that support the car floor 12.
  • Vibration isolating portions 20 are provided at both ends in the longitudinal direction of the floor support beam 14A, and vibration isolating portions 20 are also provided at both ends in the longitudinal direction of the floor support beam 14B.
  • the vibration isolator 20 is a portion that suppresses vibration of the car room 8 including the car floor 12 .
  • the car floor 12 is supported by a pair of floor support beams 14A and 14B via a plurality of (four in this embodiment) vibration isolating sections 20 .
  • the vibration isolator 20 includes two coil springs 20A, a plate-shaped spring pedestal 20B attached to the bottom surface of the car floor 12, and a plate-shaped spring pedestal attached to the bottom surface of the floor support beam 14A. (not shown).
  • the coil spring 20A is an elastic member for vibration isolation.
  • the spring seat 20B is provided with a spring receiving hole (not shown) for receiving the end of the coil spring 20A. This point also applies to the spring pedestals attached to the bottom surfaces of the floor support beams 14A.
  • the vibration isolator 20 is not limited to a configuration using a coil spring, and may be configured using rubber, for example.
  • the floor support beam 14A is arranged at one longitudinal end (right end) of the lower frame 10, and the floor support beam 14B is arranged at the other longitudinal end (left end) of the lower frame 10.
  • Each of the floor support beams 14A and 14B is placed on the lower frame 10 and fixed to the upper surface of the lower frame 10 by bolts (not shown).
  • Each of the floor support beams 14A, 14B is horizontally arranged in a direction perpendicular to the lower frame 10. As shown in FIG. Specifically, the lower frame 10 is arranged parallel to the left-right direction, and the respective floor support beams 14A and 14B are arranged parallel to the front-rear direction.
  • Each of the floor support beams 14A, 14B is a member that extends long in the front-rear direction and has a closed cross-sectional structure.
  • a closed cross-sectional structure means a structure with a closed cross section, more specifically, a rectangular or cylindrical cross-sectional structure.
  • each of the floor support beams 14A, 14B has a rectangular cross-sectional structure.
  • a car door 18 is installed in the front part of the car room 8 .
  • the car door 18 is provided so as to be openable and closable in the left-right direction.
  • a pair of under-car pulleys 4A and 4B are arranged below the cage 8, as shown in FIG.
  • the under-car pulleys 4A and 4B are arranged in front of the vertical frames 11A and 11B.
  • One under-car pulley 4A is attached to the floor support beam 14A, and the other under-car pulley 4B is attached to the floor support beam 14B.
  • the mounting structure of the under-car pulleys 4A and 4B will be described in detail below.
  • the mounting structure of the under-car pulley 4A to the floor support beam 14A and the mounting structure of the under-car pulley 4B to the floor support beam 14B are common to each other. Therefore, in this specification, only the mounting structure of the under-car pulley 4A to the floor support beam 14A will be described in order to avoid duplication of description.
  • the under-car pulley 4A is supported by a pair of pulley support brackets 16A and 16B.
  • a pair of pulley support brackets 16A and 16B correspond to pulley support members.
  • the pair of pulley support brackets 16A and 16B are arranged to face each other in the longitudinal direction with the under-car pulley 4A interposed therebetween.
  • the upper end of the pulley support bracket 16A is fixed to the lower surface of the floor support beam 14A using bolts (not shown).
  • the upper end of the pulley support bracket 16B is fixed to the lower surface of the floor support beam 14A using bolts (not shown).
  • a pair of pulley support brackets 16A and 16B rotatably supports the rotating shaft of the under-car pulley 4A. Further, the under-car pulley 4A is arranged below the car floor 12, and the floor support beam 14A is arranged between the under-car pulley 4A and the car floor 12 in the vertical direction.
  • a rope guide 17 is attached to the lower ends of the pair of pulley support brackets 16A and 16B.
  • the rope guide 17 is a rail-shaped member elongated in the left-right direction.
  • One longitudinal end of the rope guide 17 is fixed by a bolt 19 (see FIG. 5) to the lower ends of a pair of pulley support brackets 16A and 16B that support the lower car pulley 4A.
  • the other end of the rope guide 17 in the longitudinal direction is fixed by bolts (not shown) to the lower ends of a pair of pulley support brackets 16A and 16B that support the lower car pulley 4B.
  • the rope guide 17 serves to protect the main rope 2 so that foreign objects are not caught in the main rope 2 wound around the under-car pulleys 4A and 4B.
  • the car 3 includes a connecting member 21 connecting the vertical frame 11A and the floor supporting beam 14A, and a connecting member (not shown) connecting the vertical frame 11B and the floor supporting beam 14B.
  • a connecting member 21 connecting the vertical frame 11A and the floor supporting beam 14A
  • a connecting member (not shown) connecting the vertical frame 11B and the floor supporting beam 14B.
  • the mounting structure of the connecting member 21 and the mounting structure of the connecting member (not shown) are common to each other. Therefore, in this specification, only the attachment structure of the connecting member 21 will be described in order to avoid duplication of description.
  • the connecting member 21 is arranged directly above the under-car pulley 4A when viewed from the left-right direction corresponding to the depth direction of the paper.
  • the connecting member 21 is an integral structure obtained by bending a metal plate.
  • the connecting member 21 integrally includes a first plate portion 21A, a second plate portion 21B, a third plate portion 21C, and a fourth plate portion 21D.
  • the first plate portion 21A has the largest area among the four plate portions 21A to 21D.
  • 21 A of 1st board parts are arrange
  • the second plate portion 21B and the third plate portion 21C are formed in a state of being bent at right angles from two corresponding sides of the first plate portion 21A. Further, the second plate portion 21B and the third plate portion 21C are arranged to face each other in the front-rear direction.
  • the fourth plate portion 21D is formed in a state in which the lower side of the first plate portion 21A is bent at right angles in the same direction as the second plate portion 21B and the third plate portion 21C.
  • the connecting member 21 configured as described above is fixed to the floor support beam 14A via the intermediate member 22.
  • the intermediate member 22 is formed in a hat shape, as shown in FIG. In FIG. 7, the notation of the connecting member 21 is omitted in order to show the structure of the intermediate member 22.
  • the intermediate member 22 is an integral structure obtained by bending a metal plate.
  • the intermediate member 22 integrally has a pair of fixing portions 22A and a connecting portion 22B. A predetermined step is provided between the pair of fixed portions 22A and connecting portion 22B.
  • the pair of fixed portions 22A are fixed to one side surface (right side surface) of the floor support beam 14A by bolts 23, respectively.
  • the connecting portion 22B is arranged to protrude rightward from one side surface of the floor support beam 14A.
  • the connecting portion 22B is provided with two screw holes (not shown), and a bolt 24 is attached to each screw hole.
  • the bolt 24 is a bolt for fastening the first plate portion 21A of the connecting member 21 and the connecting portion 22B of the intermediate member 22 .
  • the first plate portion 21A of the connecting member 21 is provided with two bolt insertion holes (not shown) corresponding to the two screw holes.
  • the first plate portion 21A of the connecting member 21 is fixed to the connecting portion 22B of the intermediate member 22 by two bolts 24. As shown in FIG. Thereby, the connecting member 21 is fixed to the floor support beam 14A via the intermediate member 22.
  • the second plate portion 21B of the connecting member 21 is fixed to the front surface of the vertical frame 11A with two bolts 25.
  • a nut 29 (see FIG. 5) is attached to the male thread of each bolt 25 .
  • the connecting member 21 and the vertical frame 11A are fixed to each other by the tightening force of the bolt 25 and the nut 29.
  • the fourth plate portion 21D of the connecting member 21 is fixed by two bolts 26 to the upper ends of the pair of pulley support brackets 16A and 16b.
  • a part of the pair of pulley support brackets 16A and 16B is arranged to protrude to the right from the floor support beam 14A, and each bolt 26 is tightened with the fourth plate portion 21D placed on this protruding part.
  • a portion of the connecting member 21 is fixed to the pair of pulley support brackets 16A and 16b, which are pulley support members.
  • a contamination prevention cover 27 is attached to the connecting member 21 as shown in FIGS.
  • the foreign matter contamination prevention cover 27 is provided mainly to prevent foreign matter from entering the under-car pulley 4A.
  • the foreign matter contamination prevention cover 27 is fixed to the first plate portion 21A of the connecting member 21 with two bolts 28 .
  • the foreign matter contamination prevention cover 27 integrally has a shielding portion 27A projecting obliquely upward from the outer surface of the first plate portion 21A.
  • the shielding portion 27A is arranged in a state of shielding the outer peripheral portion of the under-car pulley 4A when viewed vertically downward from a position above the connecting member 21 .
  • the foreign object contamination prevention cover 27 is provided not only on the right connecting member 21 on which the vertical frame 11A and the floor support beam 14A are arranged, but also on the left connecting member (not shown) on which the vertical frame 11B and the floor support beam 14B are arranged. ) can also be attached.
  • the anti-vibration portion 31 includes a rubber plate 31A as an elastic body and a metal support plate 31B that supports the rubber plate 31A.
  • the rubber plate 31A is L-shaped, and the support plate 31B is also L-shaped.
  • the rubber plate 31A and the support plate 31B are joined back to back.
  • the rubber plate 31A is pressed against the third plate portion 21C of the connecting member 21 .
  • the support plate 31B is fixed to the side surface of the car floor 12 with two bolts 32.
  • the rubber plate 31A is pressed against the rear surface of the vertical frame 11A.
  • FIG. 8 is a schematic diagram showing a car according to a comparative example.
  • the car 100 according to the comparative embodiment includes a car floor 101 , vertical frames 102 , floor support beams 103 and tie rods 104 .
  • the floor support beam 103 when a downward load P is applied to the front side of the floor support beam 103, the floor support beam 103 is tilted at an angle ⁇ .
  • the floor support beams 103 tilt in this manner, the car floor 101 supported by the floor support beams 103 also tilts.
  • the front end of the floor support beam 103 is attached to the lower end of the tie rod 104, and the front side of the floor support beam 103 is pulled up by the tie rod 104, whereby the floor support beam 103 and the car floor are mounted.
  • the inclination of 101 is eliminated (adjusted).
  • the downward load P is an unbalanced load caused by uneven mass balance between the front side and the rear side of the entire parts constituting the car 100 .
  • FIG. 9 shows an unbalanced load P that occurs when the load applied to the front side of the floor support beam 103 is larger than the load applied to the rear side.
  • the vertical frame 1111A and the floor support beam 14A are connected by the connecting member 21 as shown in FIG. Further, as shown in FIG. 5, a pair of pulley support brackets 16A and 16B are fixed to the floor support beam 14A.
  • the pair of pulley support brackets 16A and 16B are arranged on the front side of the vertical frame 11A. Therefore, as shown in FIG. 1, when the main rope 2 is wound around the pair of under-car pulleys 4A and 4B to lift the car 3, an upward force corresponding to the self weight of the car 3 is applied to the main rope 2. joins the under-car pulleys 4A, 4B and the pair of pulley support brackets 16A, 16B.
  • the upward force described above is also applied to the floor support beams 14A, 14B via the pair of pulley support brackets 16A, 16B. Therefore, on the right side of the car 3, as shown in FIG. 9, a downward load (unbalanced load) P applied to the front side of the floor support beam 14A causes an upward force Pu to oppose the floor support beam 14A. join. Therefore, tilting of the floor support beams 14A and the car floor 12 can be eliminated. Similarly, on the left side of the car 3, an upward force is applied to the floor support beam 14B to counter the downward load (unbalanced load) applied to the front side of the floor support beam 14B. Therefore, inclination of the floor support beams 14B and the car floor 12 can be eliminated.
  • the vertical frame 11A and the floor support beam 14A are connected by a connecting member 21. Therefore, the connecting member 21 and the vertical frame 11A receive an upward force applied to the pair of pulley support brackets 16A, 16B and the floor support beams 14A, 14B. Specifically, an upward force applied to the floor support beam 14A is transmitted to the vertical frame 11A via the intermediate member 22 and the connecting member 21. As shown in FIG. Therefore, the second plate portion 21B of the connecting member 21 is pressed against the front surface of the vertical frame 11A. Further, the position and attitude of the vertical frame 11A in the hoistway 50 are held constant by guide rails (not shown).
  • the vertical frame 11a supports the connecting member 21 which receives an upward force. Therefore, the posture of the floor support beam 14A can be horizontally maintained by the vertical frame 11A and the connecting member 21.
  • the vertical frame 11B and the floor support beam 14B are connected by connecting members (not shown). Therefore, the posture of the floor support beam 14B can be horizontally maintained by the vertical frame 11B and the connecting member.
  • a pair of pulley support brackets 16A and 16B are fixed to the floor support beams 14A and 14B that support the car floor 12, and the vertical frames 11A and 11B and the floor support beams 14A and 14B are connected by connecting members, respectively. 21. Therefore, the inclination of the floor support beams 14A, 14B can be eliminated by utilizing the upward force applied to the pair of pulley support brackets 16A, 16B by the main rope 2 wound around the under-car pulleys 4A, 4B. As a result, the inclination of the car floor 12 can be suppressed without providing the tie rods 104 required in the car 100 according to the comparative embodiment. In other words, a tie-rodless car can be realized.
  • the connecting member 21 is arranged directly above the under-car pulleys 4A and 4B. Therefore, the upward force applied to the pair of pulley support brackets 16A and 16B by the main rope 2 wound around the under-car pulleys 4A and 4B can be efficiently transmitted to the connecting member 21 .
  • a foreign matter contamination prevention cover 27 is attached to the connecting member 21 .
  • the connecting member 21 For this reason, for example, when a foreign object falls from a position above the connecting member 21, the foreign object hits the blocking portion 27A of the foreign object contamination prevention cover 27 and stays there, or rebounds there to move to the sides of the lower car pulleys 4A and 4B. deviate from Therefore, foreign matter can be prevented from entering the under-car pulleys 4A and 4B.
  • the floor support beams 14A and 14B having a closed cross section structure, the floor support beams 14A and 14B are made highly rigid. Therefore, the bending of the floor support beams 14A and 14B can be suppressed.
  • an intermediate member 22 is fixed to one side surface of the floor support beam 14A, and the connection member 21 is fixed to the floor support beam 14A via this intermediate member 22.
  • the projection dimension of the intermediate member 22 is determined according to the relationship between the fixed position of the intermediate member 22 on the vertical frame 11A and the fixed position of the connecting member 21 on the floor support beam 14A.
  • the fourth plate portion 21D which is a part of the connecting member 21, is fixed to the pair of pulley support brackets 16A and 16B.
  • the upward force applied to the pair of pulley support brackets 16A and 16B can be borne by both the floor support beams 14A and 14B and the connecting member 21 . Therefore, the load applied to the floor support beams 14A and 14B by the upward force can be reduced.
  • the vertical frame 11A and the connecting member 21 are sandwiched between the pair of anti-vibration portions 31 in the longitudinal direction of the floor support beam 14A.
  • swinging of the connecting member 21 when the car 3 is raised and lowered can be suppressed.
  • This effect can also be obtained when the vertical frame 11B and the connecting member are sandwiched between the pair of anti-vibration portions 31 in the longitudinal direction of the floor support beam 14B.
  • the under-car pulleys 4A and 4B are arranged in front of the vertical frames 11A and 11B. Therefore, when a downward load (unbalanced load) is applied to the front sides of the vertical frames 11A and 11B, an upward force can be generated on the front sides of the vertical frames 11A and 11B to counteract this load.
  • the present invention is not limited to the above-described embodiments, and includes various modifications.
  • the details of the present invention have been described for easy understanding, but the present invention is not necessarily limited to having all the configurations described in the above-described embodiments.
  • part of the configuration of one embodiment can be replaced with the configuration of another embodiment.
  • add the configuration of another embodiment to the configuration of one embodiment.
  • the under-car pulleys 4A and 4B are arranged on the front side of the vertical frames 11A and 11b, but this is not the only option.
  • the under-car pulleys 4A and 4B may be arranged behind the vertical frames 11A and 11b.
  • a downward load unbalanced load
  • an upward A force can be generated behind the vertical frames 11A, 11B.
  • the connecting member 21 is fixed to the floor support beams 14A and 14B via the intermediate member 22.
  • the present invention is not limited to this. It is also possible to fix the connection member 21 directly to the floor support beams 14A and 14B by adopting the attached structure.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

This elevator car comprises: a car frame having a pair of vertical frames and a lower frame linking lower ends of the pair of vertical frames; a floor support beam supporting a car floor and supported on the lower frame; an under-car pulley disposed below the car floor; a pulley support member fixed to the floor support beam and rotatably supporting the under-car pulley; and a linking member linking the vertical frames and the floor support beam. The elevator car has a structure in which upward force exerted on the pulley support member and the floor support beam by a main rope that is wound around the under-car pulley is received by the linking member and the vertical frames.

Description

乗りかごおよびエレベーターcar and elevator
　本発明は、乗りかごおよびエレベーターに関する。 The present invention relates to cars and elevators.
　一般に、エレベーターの乗りかごは、かご床の傾きを抑制するタイロッドを備えている。かご床は、床支持梁によって支持される。かご床の傾きは、タイロッドを介して床支持梁に上向きの力を加えることにより抑制される。タイロッドを備えるエレベーターの乗りかごに関する技術としては、たとえば特許文献１に記載された技術が知られている。 In general, elevator cars are equipped with tie rods that suppress tilting of the car floor. The car floor is supported by floor support beams. The inclination of the car floor is suppressed by applying an upward force to the floor support beams via the tie rods. As a technology related to an elevator car provided with tie rods, for example, the technology described in Patent Document 1 is known.
特開平５－２４６６５８号公報JP-A-5-246658
　しかしながら、タイロッドは、乗りかごのかご外法よりも昇降路の壁側に出っ張って配置される。このため、タイロッドを備える乗りかごでは次のような不都合が生じる。
　かご外法は、昇降路に乗りかご以外の機器（以下、「昇降路機器」という。）を設置するうえで計画される寸法であり、この計画寸法の範囲内で乗りかごを設計するかぎり、乗りかごと昇降路機器とが干渉することはない。このため、昇降路機器の一つである釣り合い錘などの機器は、かご外法と昇降路の壁との間に収まるように設計される。しかし、上述のようにタイロッドがかご外法から出っ張る場合は、タイロッドの出っ張りによって昇降路機器の配置や設計に制約が生じる。また、エレベーターの据付作業を行う施工現場では、乗りかごと昇降路機器とが干渉しないかどうかを確認し、干渉する場合は昇降路機器の配置や乗りかごの構造を見直す必要がある。 However, the tie rods are arranged so as to protrude toward the wall side of the hoistway from the outside of the car. For this reason, the following problems occur in the car provided with tie rods.
The car outer dimension is the dimension planned for installing equipment other than the car on the hoistway (hereinafter referred to as "hoistway equipment"), and as long as the car is designed within this planned dimension, There is no interference between the car and hoistway equipment. For this reason, equipment such as counterweights, which are one type of hoistway equipment, are designed to fit between the car exterior and the walls of the hoistway. However, when the tie rod protrudes from the outside of the car as described above, the protrusion of the tie rod imposes restrictions on the layout and design of the hoistway equipment. Also, at construction sites where elevator installation work is carried out, it is necessary to check whether the elevator car and hoistway equipment interfere with each other, and if they interfere, review the layout of the hoistway equipment and the structure of the elevator car.
　本発明の目的は、タイロッドを設けなくても、かご床の傾きを抑制することができる乗りかごおよびエレベーターを提供することにある。 An object of the present invention is to provide a car and an elevator capable of suppressing inclination of the car floor without providing tie rods.
　上記課題を解決するために、たとえば、特許請求の範囲に記載された構成を採用する。
　本願は、上記課題を解決する手段を複数含んでいるが、その一つを挙げるならば、一対の縦枠および一対の縦枠の下端部を連結する下枠を有するかご枠と、かご床を支持するとともに、下枠に支持された床支持梁と、かご床の下方に配置されたかご下プーリと、床支持梁に固定されるとともに、かご下プーリを回転可能に支持するプーリ支持部材と、縦枠と床支持梁とを連結する連結部材と、を備える乗りかごである。この乗りかごは、かご下プーリに巻き掛けられる主ロープによってプーリ支持部材および床支持梁に加わる上向きの力を、連結部材および縦枠で受ける構造になっている。 In order to solve the above problems, for example, the configurations described in the claims are adopted.
The present application includes a plurality of means for solving the above problems. One of them is a car frame having a pair of vertical frames and a lower frame connecting the lower ends of the pair of vertical frames, and a car floor. A floor support beam supported by the lower frame, an under-car pulley arranged below the floor of the car, and a pulley support member fixed to the floor support beam and rotatably supporting the under-car pulley. , and a connection member that connects the vertical frame and the floor support beam. This car has a structure in which an upward force applied to the pulley support member and the floor support beam by the main rope wound around the pulley under the car is received by the connecting member and the vertical frame.
　本発明によれば、タイロッドを設けなくても、かご床の傾きを抑制することができる。
　上記した以外の課題、構成および効果は、以下の実施形態の説明によって明らかにされる。 ADVANTAGE OF THE INVENTION According to this invention, even if it does not provide a tie rod, the inclination of a car floor can be suppressed.
Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.
実施形態に係るエレベーターの概略構成図である。1 is a schematic configuration diagram of an elevator according to an embodiment; FIG. 実施形態に係る乗りかごの外観を示す斜視図である。It is a perspective view showing the appearance of the car concerning an embodiment. 図２に示す乗りかごを斜め下方から見た図である。It is the figure which looked at the car shown in FIG. 2 from the diagonally downward direction. 防振部の構成を示す図である。It is a figure which shows the structure of an anti-vibration part. 図２に示す乗りかごの要部を左右方向から見た図である。It is the figure which looked at the principal part of the car shown in FIG. 2 from the left-right direction. 図２に示す乗りかごの要部を斜め方向から見た図である。It is the figure which looked at the principal part of the car shown in FIG. 2 from the diagonal direction. 中間部材の構成を示す図である。It is a figure which shows the structure of an intermediate member. 比較形態に係る乗りかごを示す模式図である。It is a schematic diagram which shows the car which concerns on a comparative form. 実施形態に係る乗りかごを示す模式図である。It is a mimetic diagram showing a car concerning an embodiment.
　以下、本発明の実施形態について図面を参照して詳細に説明する。本明細書および図面において、実質的に同一の機能または構成を有する要素については、同一の符号を付し、重複する説明は省略する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this specification and the drawings, elements having substantially the same function or configuration are denoted by the same reference numerals, and overlapping descriptions are omitted.
　図１は、実施形態に係るエレベーターの概略構成図である。
　図１に示すように、エレベーターは、巻上機１と、主ロープ２と、乗りかご３と、釣り合い錘５と、プーリ６と、を備えている。乗りかご３は、一対のかご下プーリ４Ａ，４Ｂを備えている。乗りかご３は、一対のかご下プーリ４Ａ，４Ｂに巻き掛けられた主ロープ２の移動に従って昇降路５０を昇降する。 FIG. 1 is a schematic configuration diagram of an elevator according to an embodiment.
As shown in FIG. 1 , the elevator includes a hoisting machine 1 , a main rope 2 , a car 3 , a counterweight 5 and a pulley 6 . The car 3 has a pair of under- car pulleys 4A and 4B. The car 3 ascends and descends on the hoistway 50 according to the movement of the main rope 2 wound around the pair of lower car pulleys 4A and 4B.
　巻上機１は、乗りかご３を昇降させるために主ロープ２を巻き上げる機器である。巻上機１は、昇降路５０の上部に設置されている。主ロープ２の一端と他端は、それぞれ昇降路５０の最上部に固定されている。主ロープ２は、一対のかご下プーリ４Ａ，４Ｂと、巻上機１と、プーリ６とに巻き掛けられている。乗りかご３は、図示しない一対のガイドレールに案内されて昇降する。一対のかご下プーリ４Ａ，４Ｂは、乗りかご３の下側に配置されている。釣り合い錘５は、乗りかご３との質量バランスをとって巻上機１の負荷を軽減するための錘である。釣り合い錘５は、巻上機１によって主ロープ２を巻き上げた場合に、乗りかご３と反対方向に昇降する。プーリ６は、釣り合い錘５の上部に配置され、釣り合い錘５と一体に昇降する。 The hoist 1 is a device that hoists the main rope 2 in order to raise and lower the car 3. The hoisting machine 1 is installed above the hoistway 50 . One end and the other end of the main rope 2 are fixed to the top of the hoistway 50, respectively. The main rope 2 is wound around a pair of under- car pulleys 4A and 4B, the hoisting machine 1, and a pulley 6. - 特許庁The car 3 ascends and descends while being guided by a pair of guide rails (not shown). A pair of under- car pulleys 4A and 4B are arranged below the car 3 . The counterweight 5 is a weight for reducing the load on the hoisting machine 1 by balancing the mass with the car 3 . The counterweight 5 moves up and down in the opposite direction to the car 3 when the main rope 2 is hoisted by the hoisting machine 1 . The pulley 6 is arranged above the counterweight 5 and moves up and down together with the counterweight 5 .
　図２は、実施形態に係る乗りかごの外観を示す斜視図である。
　本実施形態においては、乗りかご３に相対するエレベーター利用者の視線を基準として、前後・上下・左右の各方向を定義する。この場合、エレベーター利用者から見て手前側が前方向、奥側が後方、上側が上方、下側が下方、左側が左方、右側が右方となる。
　図２に示すように、乗りかご３は、かご枠７と、かご枠７の内側に配置されたかご室８とを備えている。かご室８は、荷物や人を乗せるための収容空間を内部に有する。かご室８は、かご床１２と、側板１３と、天井１５とによって形成されている。かご床１２と天井１５は、上下方向で上記収容空間を介して対向する状態に配置されている。側板１３は、かごドア１８の部分を除いて、上記収容空間の四方を取り囲むように配置されている。 FIG. 2 is a perspective view showing the appearance of the car according to the embodiment.
In this embodiment, each direction of front and back, up and down, left and right is defined with reference to the line of sight of the elevator user facing the car 3 . In this case, when viewed from the elevator user, the front side is the front, the back side is the rear, the upper side is the upper side, the lower side is the lower side, the left side is the left side, and the right side is the right side.
As shown in FIG. 2 , the car 3 includes a car frame 7 and a car room 8 arranged inside the car frame 7 . The car room 8 has an accommodation space inside for carrying luggage and people. The car room 8 is formed by a car floor 12 , side plates 13 and a ceiling 15 . The car floor 12 and the ceiling 15 are arranged to face each other in the vertical direction with the accommodation space interposed therebetween. The side plates 13 are arranged so as to surround the storage space on all sides except for the car door 18 portion.
　かご枠７は、前後方向から見て縦長の長方形に形成されている。かご枠７は、かご室８を取り囲むように配置されている。かご枠７は、かご室８の上部に配置された上枠９と、かご室８の下部に配置された下枠１０（図３参照）と、かご室８の左右の側部に配置された一対の縦枠１１Ａ，１１Ｂと、を有している。上枠９は、左右方向に長く延在する部材である。上枠９は、一対の縦枠１１Ａ，１１Ｂの上端部間に水平に架け渡されている。上枠９の長手方向の一端部は縦枠１１Ａの上端部に固定され、上枠９の長手方向の他端部は縦枠１１Ｂの上端部に固定されている。これにより、一対の縦枠１１Ａ，１１Ｂの上端部は、上枠９によって連結されている。 The car frame 7 is formed in a vertically long rectangle when viewed from the front-rear direction. The car frame 7 is arranged so as to surround the car room 8. - 特許庁The car frame 7 includes an upper frame 9 arranged above the car chamber 8, a lower frame 10 arranged below the car chamber 8 (see FIG. 3), and It has a pair of vertical frames 11A and 11B. The upper frame 9 is a member that extends long in the left-right direction. The upper frame 9 extends horizontally between the upper ends of the pair of vertical frames 11A and 11B. One longitudinal end of the upper frame 9 is fixed to the upper end of the vertical frame 11A, and the other longitudinal end of the upper frame 9 is fixed to the upper end of the vertical frame 11B. Thereby, the upper ends of the pair of vertical frames 11A and 11B are connected by the upper frame 9. As shown in FIG.
　一対の縦枠１１Ａ，１１Ｂは、左右方向で互いに対向する状態に配置されている。各々の縦枠１１Ａ，１１Ｂは、上下方向に長く延在する部材である。各々の縦枠１１Ａ，１１Ｂは、上述した一対のガイドレールによって支持される。ガイドレールは、昇降路５０の壁に鉛直に据え付けられる長尺状の部材である。 A pair of vertical frames 11A and 11B are arranged to face each other in the left-right direction. Each of the vertical frames 11A and 11B is a member elongated in the vertical direction. Each vertical frame 11A, 11B is supported by the pair of guide rails described above. The guide rail is an elongated member installed vertically on the wall of the hoistway 50 .
　一方、下枠１０は、かご室８を介して上枠９と対向する位置に配置されている。下枠１０は、左右方向に長く延在する部材である。下枠１０は、一対の縦枠１１Ａ，１１Ｂの下端部間に水平に架け渡されている。下枠１０の長手方向の一端部は縦枠１１Ａの下端部に固定され、下枠１０の長手方向の他端部は縦枠１１Ｂの下端部に固定されている。これにより、一対の縦枠１１Ａ，１１Ｂの下端部は、下枠１０によって連結されている。 On the other hand, the lower frame 10 is arranged at a position facing the upper frame 9 with the car room 8 interposed therebetween. The lower frame 10 is a member that extends long in the left-right direction. The lower frame 10 spans horizontally between the lower ends of the pair of vertical frames 11A and 11B. One longitudinal end of the lower frame 10 is fixed to the lower end of the vertical frame 11A, and the other longitudinal end of the lower frame 10 is fixed to the lower end of the vertical frame 11B. Thereby, the lower ends of the pair of vertical frames 11A and 11B are connected by the lower frame 10. As shown in FIG.
　下枠１０は、図３に示すように、一対の床支持梁１４Ａ，１４Ｂを介してかご床１２を支持している。一対の床支持梁１４Ａ，１４Ｂは、かご床１２を支持する梁である。床支持梁１４Ａの長手方向の両端部には、それぞれ防振部２０が設けられ、床支持梁１４Ｂの長手方向の両端部にも、それぞれ防振部２０が設けられている。防振部２０は、かご床１２を含むかご室８の振動を抑制する部分である。かご床１２は、複数（本形態例では４つ）の防振部２０を介して、一対の床支持梁１４Ａ，１４Ｂにより支持されている。 As shown in FIG. 3, the lower frame 10 supports the car floor 12 via a pair of floor support beams 14A and 14B. A pair of floor support beams 14A and 14B are beams that support the car floor 12. As shown in FIG. Vibration isolating portions 20 are provided at both ends in the longitudinal direction of the floor support beam 14A, and vibration isolating portions 20 are also provided at both ends in the longitudinal direction of the floor support beam 14B. The vibration isolator 20 is a portion that suppresses vibration of the car room 8 including the car floor 12 . The car floor 12 is supported by a pair of floor support beams 14A and 14B via a plurality of (four in this embodiment) vibration isolating sections 20 .
　防振部２０は、図４に示すように２つのコイルバネ２０Ａと、かご床１２の下面に取り付けられた板状のバネ台座２０Ｂと、床支持梁１４Ａの底面に取り付けられた板状のバネ台座（図示せず）とによって構成されている。コイルバネ２０Ａは、防振用の弾性部材である。バネ台座２０Ｂには、コイルバネ２０Ａの端部を受け入れるバネ受け孔（不図示）が設けられている。この点は、床支持梁１４Ａの底面に取り付けられたバネ台座についても同様である。なお、防振部２０は、コイルバネを用いた構成に限らず、たとえばゴムを用いた構成であってもよい。 As shown in FIG. 4, the vibration isolator 20 includes two coil springs 20A, a plate-shaped spring pedestal 20B attached to the bottom surface of the car floor 12, and a plate-shaped spring pedestal attached to the bottom surface of the floor support beam 14A. (not shown). The coil spring 20A is an elastic member for vibration isolation. The spring seat 20B is provided with a spring receiving hole (not shown) for receiving the end of the coil spring 20A. This point also applies to the spring pedestals attached to the bottom surfaces of the floor support beams 14A. Note that the vibration isolator 20 is not limited to a configuration using a coil spring, and may be configured using rubber, for example.
　床支持梁１４Ａは、下枠１０の長手方向の一端部（右端部）に配置され、床支持梁１４Ｂは、下枠１０の長手方向の他端（左端部）に配置されている。また、各々の床支持梁１４Ａ，１４Ｂは、下枠１０の上に載せた状態で、図示しないボルトにより下枠１０の上面に固定されている。各々の床支持梁１４Ａ，１４Ｂは、下枠１０と直角をなす向きで水平に配置されている。具体的には、下枠１０は左右方向と平行に配置され、各々の床支持梁１４Ａ，１４Ｂは、前後方向と平行に配置されている。 The floor support beam 14A is arranged at one longitudinal end (right end) of the lower frame 10, and the floor support beam 14B is arranged at the other longitudinal end (left end) of the lower frame 10. Each of the floor support beams 14A and 14B is placed on the lower frame 10 and fixed to the upper surface of the lower frame 10 by bolts (not shown). Each of the floor support beams 14A, 14B is horizontally arranged in a direction perpendicular to the lower frame 10. As shown in FIG. Specifically, the lower frame 10 is arranged parallel to the left-right direction, and the respective floor support beams 14A and 14B are arranged parallel to the front-rear direction.
　各々の床支持梁１４Ａ，１４Ｂは、前後方向に長く延在する部材であって、閉断面構造を有する。閉断面構造とは、断面が閉じた構造をいい、より具体的には、角形や円筒の断面構造をいう。本実施形態においては、各々の床支持梁１４Ａ，１４Ｂが角形の断面構造を有している。このように、閉断面構造を有する床支持梁１４Ａ，１４Ｂを用いることにより、各々の床支持梁１４Ａ，１４Ｂを高剛性化することができる。 Each of the floor support beams 14A, 14B is a member that extends long in the front-rear direction and has a closed cross-sectional structure. A closed cross-sectional structure means a structure with a closed cross section, more specifically, a rectangular or cylindrical cross-sectional structure. In this embodiment, each of the floor support beams 14A, 14B has a rectangular cross-sectional structure. By using the floor support beams 14A and 14B having a closed cross-sectional structure in this manner, the floor support beams 14A and 14B can be made highly rigid.
　かご室８の前部には、かごドア１８が設置されている。かごドア１８は、左右方向に開閉可能に設けられている。かご室８の下側には、図３に示すように、一対のかご下プーリ４Ａ，４Ｂが配置されている。かご下プーリ４Ａ，４Ｂは、縦枠１１Ａ，１１Ｂよりも前側に配置されている。一方のかご下プーリ４Ａは床支持梁１４Ａに取り付けられ、他方のかご下プーリ４Ｂは床支持梁１４Ｂに取り付けられている。以下、かご下プーリ４Ａ，４Ｂの取り付け構造について詳しく説明する。なお、床支持梁１４Ａに対するかご下プーリ４Ａの取り付け構造と、床支持梁１４Ｂに対するかご下プーリ４Ｂの取り付け構造は、互いに共通である。このため、本明細書においては、説明の重複を避けるために、床支持梁１４Ａに対するかご下プーリ４Ａの取り付け構造についてのみ説明する。 A car door 18 is installed in the front part of the car room 8 . The car door 18 is provided so as to be openable and closable in the left-right direction. A pair of under- car pulleys 4A and 4B are arranged below the cage 8, as shown in FIG. The under- car pulleys 4A and 4B are arranged in front of the vertical frames 11A and 11B. One under-car pulley 4A is attached to the floor support beam 14A, and the other under-car pulley 4B is attached to the floor support beam 14B. The mounting structure of the under- car pulleys 4A and 4B will be described in detail below. The mounting structure of the under-car pulley 4A to the floor support beam 14A and the mounting structure of the under-car pulley 4B to the floor support beam 14B are common to each other. Therefore, in this specification, only the mounting structure of the under-car pulley 4A to the floor support beam 14A will be described in order to avoid duplication of description.
　図３および図５に示すように、かご下プーリ４Ａは、一対のプーリ支持ブラケット１６Ａ，１６Ｂによって支持されている。一対のプーリ支持ブラケット１６Ａ，１６Ｂは、プーリ支持部材に相当する。一対のプーリ支持ブラケット１６Ａ，１６Ｂは、前後方向でかご下プーリ４Ａを介して互いに対向する状態に配置されている。プーリ支持ブラケット１６Ａの上端部は、図示しないボルトを用いて床支持梁１４Ａの下面に固定されている。同様に、プーリ支持ブラケット１６Ｂの上端部は、図示しないボルトを用いて床支持梁１４Ａの下面に固定されている。一対のプーリ支持ブラケット１６Ａ，１６Ｂは、かご下プーリ４Ａの回転軸を回転自在に支持している。また、かご下プーリ４Ａは、かご床１２の下方に配置され、床支持梁１４Ａは、上下方向でかご下プーリ４Ａとかご床１２との間に配置されている。 As shown in FIGS. 3 and 5, the under-car pulley 4A is supported by a pair of pulley support brackets 16A and 16B. A pair of pulley support brackets 16A and 16B correspond to pulley support members. The pair of pulley support brackets 16A and 16B are arranged to face each other in the longitudinal direction with the under-car pulley 4A interposed therebetween. The upper end of the pulley support bracket 16A is fixed to the lower surface of the floor support beam 14A using bolts (not shown). Similarly, the upper end of the pulley support bracket 16B is fixed to the lower surface of the floor support beam 14A using bolts (not shown). A pair of pulley support brackets 16A and 16B rotatably supports the rotating shaft of the under-car pulley 4A. Further, the under-car pulley 4A is arranged below the car floor 12, and the floor support beam 14A is arranged between the under-car pulley 4A and the car floor 12 in the vertical direction.
　一対のプーリ支持ブラケット１６Ａ，１６Ｂの下端部には、ロープガイド１７が取り付けられている。ロープガイド１７は、左右方向に長いレール状の部材である。ロープガイド１７の長手方向の一端部は、かご下プーリ４Ａを支持する一対のプーリ支持ブラケット１６Ａ，１６Ｂの下端部にボルト１９（図５参照）によって固定されている。また、ロープガイド１７の長手方向の他端部は、かご下プーリ４Ｂを支持する一対のプーリ支持ブラケット１６Ａ，１６Ｂの下端部にボルト（図示せず）によって固定されている。ロープガイド１７は、かご下プーリ４Ａ，４Ｂに巻き掛けられる主ロープ２に異物が巻き込まれないように、主ロープ２を保護する役目を果たす。 A rope guide 17 is attached to the lower ends of the pair of pulley support brackets 16A and 16B. The rope guide 17 is a rail-shaped member elongated in the left-right direction. One longitudinal end of the rope guide 17 is fixed by a bolt 19 (see FIG. 5) to the lower ends of a pair of pulley support brackets 16A and 16B that support the lower car pulley 4A. The other end of the rope guide 17 in the longitudinal direction is fixed by bolts (not shown) to the lower ends of a pair of pulley support brackets 16A and 16B that support the lower car pulley 4B. The rope guide 17 serves to protect the main rope 2 so that foreign objects are not caught in the main rope 2 wound around the under- car pulleys 4A and 4B.
　ここで、本実施形態に係る乗りかご３は、縦枠１１Ａと床支持梁１４Ａとを連結する連結部材２１、および、縦枠１１Ｂと床支持梁１４Ｂとを連結する連結部材（不図示）を備えている。連結部材２１の取付構造と連結部材（図示せず）の取り付け構造は、互いに共通である。このため、本明細書においては、説明の重複を避けるために、連結部材２１の取り付け構造についてのみ説明する。 Here, the car 3 according to the present embodiment includes a connecting member 21 connecting the vertical frame 11A and the floor supporting beam 14A, and a connecting member (not shown) connecting the vertical frame 11B and the floor supporting beam 14B. I have. The mounting structure of the connecting member 21 and the mounting structure of the connecting member (not shown) are common to each other. Therefore, in this specification, only the attachment structure of the connecting member 21 will be described in order to avoid duplication of description.
　連結部材２１は、図５に示すように、紙面の奥行き方向に相当する左右方向から見て、かご下プーリ４Ａの直上に配置されている。連結部材２１は、金属製の板を曲げ加工して得られる一体構造物である。連結部材２１は、図５および図６に示すように、第１の板部２１Ａと、第２の板部２１Ｂと、第３の板部２１Ｃと、第４の板部２１Ｄとを一体に有する。第１の板部２１Ａは、４つの板部２１Ａ～２１Ｄのなかで最も面積の大きい板部である。第１の板部２１Ａは、前後方向と上下方向とに平行な仮想平面と平行に配置されている。第２の板部２１Ｂおよび第３の板部２１Ｃは、第１の板部２１Ａの相対応する２つの側辺から、それぞれ直角に折れ曲がった状態で形成されている。また、第２の板部２１Ｂおよび第３の板部２１Ｃは、前後方向で互いに対向する状態に配置されている。第４の板部２１Ｄは、第１の板部２１Ａの下辺から、第２の板部２１Ｂおよび第３の板部２１Ｃと同じ方向に直角に折れ曲がった状態で形成されている。 As shown in FIG. 5, the connecting member 21 is arranged directly above the under-car pulley 4A when viewed from the left-right direction corresponding to the depth direction of the paper. The connecting member 21 is an integral structure obtained by bending a metal plate. As shown in FIGS. 5 and 6, the connecting member 21 integrally includes a first plate portion 21A, a second plate portion 21B, a third plate portion 21C, and a fourth plate portion 21D. . The first plate portion 21A has the largest area among the four plate portions 21A to 21D. 21 A of 1st board parts are arrange|positioned in parallel with the imaginary plane parallel to the front-back direction and the up-down direction. The second plate portion 21B and the third plate portion 21C are formed in a state of being bent at right angles from two corresponding sides of the first plate portion 21A. Further, the second plate portion 21B and the third plate portion 21C are arranged to face each other in the front-rear direction. The fourth plate portion 21D is formed in a state in which the lower side of the first plate portion 21A is bent at right angles in the same direction as the second plate portion 21B and the third plate portion 21C.
　上記構成からなる連結部材２１は、中間部材２２を介して床支持梁１４Ａに固定されている。中間部材２２は、図７に示すように、ハット形に形成されている。図７では、中間部材２２の構造を示すために、連結部材２１の表記を省略している。
　中間部材２２は、金属製の板を曲げ加工して得られる一体構造物である。中間部材２２は、一対の固定部２２Ａと、接続部２２Ｂとを一体に有する。一対の固定部２２Ａと接続部２２Ｂとの間には所定の段差が設けられている。一対の固定部２２Ａは、それぞれボルト２３によって床支持梁１４Ａの一側面（右側面）に固定されている。接続部２２Ｂは、床支持梁１４Ａの一側面から右方向に突出する状態で配置されている。接続部２２Ｂには、図示しない２つのネジ孔が設けられ、各々のネジ孔にボルト２４が取り付けられている。ボルト２４は、連結部材２１の第１の板部２１Ａと中間部材２２の接続部２２Ｂとを締結するためのボルトである。一方、連結部材２１の第１の板部２１Ａには、上記２つのネジ孔に対応する２つのボルト挿入孔（不図示）が設けられている。そして、連結部材２１の第１の板部２１Ａは、中間部材２２の接続部２２Ｂに２つのボルト２４によって固定されている。これにより、連結部材２１は、中間部材２２を介して床支持梁１４Ａに固定されている。 The connecting member 21 configured as described above is fixed to the floor support beam 14A via the intermediate member 22. As shown in FIG. The intermediate member 22 is formed in a hat shape, as shown in FIG. In FIG. 7, the notation of the connecting member 21 is omitted in order to show the structure of the intermediate member 22. As shown in FIG.
The intermediate member 22 is an integral structure obtained by bending a metal plate. The intermediate member 22 integrally has a pair of fixing portions 22A and a connecting portion 22B. A predetermined step is provided between the pair of fixed portions 22A and connecting portion 22B. The pair of fixed portions 22A are fixed to one side surface (right side surface) of the floor support beam 14A by bolts 23, respectively. The connecting portion 22B is arranged to protrude rightward from one side surface of the floor support beam 14A. The connecting portion 22B is provided with two screw holes (not shown), and a bolt 24 is attached to each screw hole. The bolt 24 is a bolt for fastening the first plate portion 21A of the connecting member 21 and the connecting portion 22B of the intermediate member 22 . On the other hand, the first plate portion 21A of the connecting member 21 is provided with two bolt insertion holes (not shown) corresponding to the two screw holes. The first plate portion 21A of the connecting member 21 is fixed to the connecting portion 22B of the intermediate member 22 by two bolts 24. As shown in FIG. Thereby, the connecting member 21 is fixed to the floor support beam 14A via the intermediate member 22. As shown in FIG.
　また、図６に示すように、連結部材２１の第２の板部２１Ｂは、２つのボルト２５によって縦枠１１Ａの前側の面に固定されている。各々のボルト２５の雄ネジには、ナット２９（図５参照）が装着されている。これにより、連結部材２１と縦枠１１Ａは、ボルト２５とナット２９の締め付け力によって相互に固定されている。一方、連結部材２１の第４の板部２１Ｄは、２つのボルト２６によって一対のプーリ支持ブラケット１６Ａ，１６ｂの上端部に固定されている。一対のプーリ支持ブラケット１６Ａ，１６Ｂの一部は、床支持梁１４Ａよりも右方向に突出して配置され、この突出部分に第４の板部２１Ｄを載せた状態で各々のボルト２６が締め付けられている。これにより、連結部材２１の一部は、プーリ支持部材である一対のプーリ支持ブラケット１６Ａ，１６ｂに固定されている。 Further, as shown in FIG. 6, the second plate portion 21B of the connecting member 21 is fixed to the front surface of the vertical frame 11A with two bolts 25. As shown in FIG. A nut 29 (see FIG. 5) is attached to the male thread of each bolt 25 . Thereby, the connecting member 21 and the vertical frame 11A are fixed to each other by the tightening force of the bolt 25 and the nut 29. As shown in FIG. On the other hand, the fourth plate portion 21D of the connecting member 21 is fixed by two bolts 26 to the upper ends of the pair of pulley support brackets 16A and 16b. A part of the pair of pulley support brackets 16A and 16B is arranged to protrude to the right from the floor support beam 14A, and each bolt 26 is tightened with the fourth plate portion 21D placed on this protruding part. there is As a result, a portion of the connecting member 21 is fixed to the pair of pulley support brackets 16A and 16b, which are pulley support members.
　連結部材２１には、図５および図６に示すように、異物混入防止カバー２７が取り付けられている。異物混入防止カバー２７は、主にかご下プーリ４Ａへの異物の混入を防止するために設けられたカバーである。異物混入防止カバー２７は、２つのボルト２８によって連結部材２１の第１の板部２１Ａに固定されている。異物混入防止カバー２７は、第１の板部２１Ａの外面から斜め上方に突き出す遮蔽部２７Ａを一体に有する。遮蔽部２７Ａは、連結部材２１よりも上方の位置から鉛直下方を見たときに、かご下プーリ４Ａの外周部を遮蔽する状態に配置される。なお、異物混入防止カバー２７は、縦枠１１Ａおよび床支持梁１４Ａが配置される右側の連結部材２１だけでなく、縦枠１１Ｂおよび床支持梁１４Ｂが配置される左側の連結部材（図示せず）にも取り付けられる。 A contamination prevention cover 27 is attached to the connecting member 21 as shown in FIGS. The foreign matter contamination prevention cover 27 is provided mainly to prevent foreign matter from entering the under-car pulley 4A. The foreign matter contamination prevention cover 27 is fixed to the first plate portion 21A of the connecting member 21 with two bolts 28 . The foreign matter contamination prevention cover 27 integrally has a shielding portion 27A projecting obliquely upward from the outer surface of the first plate portion 21A. The shielding portion 27A is arranged in a state of shielding the outer peripheral portion of the under-car pulley 4A when viewed vertically downward from a position above the connecting member 21 . Note that the foreign object contamination prevention cover 27 is provided not only on the right connecting member 21 on which the vertical frame 11A and the floor support beam 14A are arranged, but also on the left connecting member (not shown) on which the vertical frame 11B and the floor support beam 14B are arranged. ) can also be attached.
　また、床支持梁１４Ａと連結部材２１とは、図５に示すように、床支持梁１４Ａの長手方向に相当する前後方向で一対の振れ止め部３１により挟み込まれている。振れ止め部３１は、図６および図７に示すように、弾性体としてのゴム板３１Ａと、ゴム板３１Ａを支持する金属製の支持板３１Ｂとを備えている。ゴム板３１ＡはＬ字形に形成され、支持板３１ＢもＬ字形に形成されている。そして、ゴム板３１Ａと支持板３１Ｂは、背中合わせの状態で結合されている。ゴム板３１Ａは、連結部材２１の第３の板部２１Ｃに押し付けられている。支持板３１Ｂは、かご床１２の側面に２つのボルト３２によって固定されている。なお、縦枠１１Ａをあいだに挟んで連結部材２１と反対側に配置された振れ止め部３１では、ゴム板３１Ａが縦枠１１Ａの後ろ側の面に押し付けられている。 Further, the floor support beam 14A and the connecting member 21 are sandwiched between a pair of anti-vibration portions 31 in the front-rear direction corresponding to the longitudinal direction of the floor support beam 14A, as shown in FIG. As shown in FIGS. 6 and 7, the anti-vibration portion 31 includes a rubber plate 31A as an elastic body and a metal support plate 31B that supports the rubber plate 31A. The rubber plate 31A is L-shaped, and the support plate 31B is also L-shaped. The rubber plate 31A and the support plate 31B are joined back to back. The rubber plate 31A is pressed against the third plate portion 21C of the connecting member 21 . The support plate 31B is fixed to the side surface of the car floor 12 with two bolts 32. As shown in FIG. In addition, in the anti-vibration portion 31 arranged on the opposite side of the connecting member 21 with the vertical frame 11A interposed therebetween, the rubber plate 31A is pressed against the rear surface of the vertical frame 11A.
　図８は、比較形態に係る乗りかごを示す模式図である。
　図８に示すように、比較形態に係る乗りかご１００は、かご床１０１と、縦枠１０２と、床支持梁１０３と、タイロッド１０４と、を備えている。比較形態に係る乗りかご１００においては、床支持梁１０３の前側に下向きの荷重Ｐが加わった場合に、床支持梁１０３に角度θの傾きが生じる。このように床支持梁１０３が傾くと、床支持梁１０３によって支持されるかご床１０１にも傾きが生じる。このため、比較形態に係る乗りかご１００では、床支持梁１０３の前端部にタイロッド１０４の下端部に取り付け、このタイロッド１０４で床支持梁１０３の前側を引き上げることにより、床支持梁１０３およびかご床１０１の傾きを解消（調整）している。下向きの荷重Ｐは、乗りかご１００を構成する部品全体の質量のバランスが前側と後ろ側で不均一になることによって生じる偏荷重である。なお、図９においては、一例として、床支持梁１０３の前側に加わる荷重が後ろ側に加わる荷重よりも大きい場合に生じる偏荷重Ｐを示している。 FIG. 8 is a schematic diagram showing a car according to a comparative example.
As shown in FIG. 8 , the car 100 according to the comparative embodiment includes a car floor 101 , vertical frames 102 , floor support beams 103 and tie rods 104 . In the car 100 according to the comparative embodiment, when a downward load P is applied to the front side of the floor support beam 103, the floor support beam 103 is tilted at an angle θ. When the floor support beams 103 tilt in this manner, the car floor 101 supported by the floor support beams 103 also tilts. Therefore, in the car 100 according to the comparative embodiment, the front end of the floor support beam 103 is attached to the lower end of the tie rod 104, and the front side of the floor support beam 103 is pulled up by the tie rod 104, whereby the floor support beam 103 and the car floor are mounted. The inclination of 101 is eliminated (adjusted). The downward load P is an unbalanced load caused by uneven mass balance between the front side and the rear side of the entire parts constituting the car 100 . As an example, FIG. 9 shows an unbalanced load P that occurs when the load applied to the front side of the floor support beam 103 is larger than the load applied to the rear side.
　これに対し、本実施形態に係る乗りかご３においては、図９に示すように、縦枠１１１１Ａと床支持梁１４Ａとを連結部材２１によって連結している。また、図５に示すように、床支持梁１４Ａには一対のプーリ支持ブラケット１６Ａ，１６Ｂが固定されている。一対のプーリ支持ブラケット１６Ａ，１６Ｂは、縦枠１１Ａよりも前側に配置されている。したがって、図１に示すように、一対のかご下プーリ４Ａ，４Ｂに主ロープ２を巻き掛けて乗りかご３を吊り上げた場合は、乗りかご３の自重に応じた上向きの力が、主ロープ２によってかご下プーリ４Ａ，４Ｂと一対のプーリ支持ブラケット１６Ａ，１６Ｂとに加わる。また、上述した上向きの力は、一対のプーリ支持ブラケット１６Ａ，１６Ｂを介して床支持梁１４Ａ，１４Ｂにも加わる。このため、乗りかご３の右側では、図９に示すように、床支持梁１４Ａの前側に加わる下向きの荷重（偏荷重）Ｐに対して、これに対抗する上向きの力Ｐｕが床支持梁１４Ａに加わる。したがって、床支持梁１４Ａおよびかご床１２の傾きを解消することができる。同様に、乗りかご３の左側では、床支持梁１４Ｂの前側に加わる下向きの荷重（偏荷重）に対して、これに対抗する上向きの力が床支持梁１４Ｂに加わる。このため、床支持梁１４Ｂおよびかご床１２の傾きを解消することができる。 On the other hand, in the car 3 according to this embodiment, the vertical frame 1111A and the floor support beam 14A are connected by the connecting member 21 as shown in FIG. Further, as shown in FIG. 5, a pair of pulley support brackets 16A and 16B are fixed to the floor support beam 14A. The pair of pulley support brackets 16A and 16B are arranged on the front side of the vertical frame 11A. Therefore, as shown in FIG. 1, when the main rope 2 is wound around the pair of under- car pulleys 4A and 4B to lift the car 3, an upward force corresponding to the self weight of the car 3 is applied to the main rope 2. joins the under- car pulleys 4A, 4B and the pair of pulley support brackets 16A, 16B. The upward force described above is also applied to the floor support beams 14A, 14B via the pair of pulley support brackets 16A, 16B. Therefore, on the right side of the car 3, as shown in FIG. 9, a downward load (unbalanced load) P applied to the front side of the floor support beam 14A causes an upward force Pu to oppose the floor support beam 14A. join. Therefore, tilting of the floor support beams 14A and the car floor 12 can be eliminated. Similarly, on the left side of the car 3, an upward force is applied to the floor support beam 14B to counter the downward load (unbalanced load) applied to the front side of the floor support beam 14B. Therefore, inclination of the floor support beams 14B and the car floor 12 can be eliminated.
　また、乗りかご３の右側では、縦枠１１Ａと床支持梁１４Ａとを連結部材２１によって連結している。このため、連結部材２１および縦枠１１Ａは、一対のプーリ支持ブラケット１６Ａ，１６Ｂおよび床支持梁１４Ａ，１４Ｂに加わる上向きの力を受ける。具体的には、床支持梁１４Ａに加わる上向きの力が、中間部材２２および連結部材２１を介して縦枠１１Ａに伝わる。このため、連結部材２１の第２の板部２１Ｂは、縦枠１１Ａの前側の面に押し付けられる。また、昇降路５０における縦枠１１Ａの位置および姿勢は、図示しないガイドレールによって一定に保持されている。このため、上述した上向きの力を受けて連結部材２１が縦枠１１Ａに押し付けられても、縦枠１１Ａの位置および姿勢は変わらない。つまり、上向きの力を受ける連結部材２１を縦枠１１ａによって支持する構成になっている。したがって、床支持梁１４Ａの姿勢を縦枠１１Ａおよび連結部材２１によって水平に保持することができる。また、乗りかご３の左側でも、乗りかご３の右側と同様に、縦枠１１Ｂと床支持梁１４Ｂとを連結部材（不図示）によって連結している。このため、床支持梁１４Ｂの姿勢を縦枠１１Ｂおよび連結部材によって水平に保持することができる。 Also, on the right side of the car 3, the vertical frame 11A and the floor support beam 14A are connected by a connecting member 21. Therefore, the connecting member 21 and the vertical frame 11A receive an upward force applied to the pair of pulley support brackets 16A, 16B and the floor support beams 14A, 14B. Specifically, an upward force applied to the floor support beam 14A is transmitted to the vertical frame 11A via the intermediate member 22 and the connecting member 21. As shown in FIG. Therefore, the second plate portion 21B of the connecting member 21 is pressed against the front surface of the vertical frame 11A. Further, the position and attitude of the vertical frame 11A in the hoistway 50 are held constant by guide rails (not shown). Therefore, even if the connecting member 21 is pressed against the vertical frame 11A by receiving the upward force described above, the position and attitude of the vertical frame 11A do not change. That is, the vertical frame 11a supports the connecting member 21 which receives an upward force. Therefore, the posture of the floor support beam 14A can be horizontally maintained by the vertical frame 11A and the connecting member 21. As shown in FIG. Also, on the left side of the car 3, like the right side of the car 3, the vertical frame 11B and the floor support beam 14B are connected by connecting members (not shown). Therefore, the posture of the floor support beam 14B can be horizontally maintained by the vertical frame 11B and the connecting member.
　＜実施形態の効果＞
　本実施形態に係る乗りかご３とこれを備えるエレベーターによれば、次のような効果が得られる。 <Effects of Embodiment>
According to the car 3 and the elevator provided with the car 3 according to the present embodiment, the following effects can be obtained.
　本実施形態においては、かご床１２を支持する床支持梁１４Ａ，１４Ｂに一対のプーリ支持ブラケット１６Ａ，１６Ｂを固定するとともに、縦枠１１Ａ，１１Ｂと床支持梁１４Ａ，１４Ｂとを、それぞれ連結部材２１によって連結している。このため、かご下プーリ４Ａ，４Ｂに巻き掛けられる主ロープ２によって一対のプーリ支持ブラケット１６Ａ，１６Ｂに加わる上向きの力を利用して、床支持梁１４Ａ，１４Ｂの傾きを解消することができる。これにより、上記比較形態に係る乗りかご１００で必要とされるタイロッド１０４を設けなくても、かご床１２の傾きを抑制することができる。つまり、乗りかごのタイロッドレス化を実現することができる。 In this embodiment, a pair of pulley support brackets 16A and 16B are fixed to the floor support beams 14A and 14B that support the car floor 12, and the vertical frames 11A and 11B and the floor support beams 14A and 14B are connected by connecting members, respectively. 21. Therefore, the inclination of the floor support beams 14A, 14B can be eliminated by utilizing the upward force applied to the pair of pulley support brackets 16A, 16B by the main rope 2 wound around the under- car pulleys 4A, 4B. As a result, the inclination of the car floor 12 can be suppressed without providing the tie rods 104 required in the car 100 according to the comparative embodiment. In other words, a tie-rodless car can be realized.
　また、本実施形態において、連結部材２１は、かご下プーリ４Ａ，４Ｂの直上に配置されている。このため、かご下プーリ４Ａ，４Ｂに巻き掛けられる主ロープ２によって一対のプーリ支持ブラケット１６Ａ，１６Ｂに加わる上向きの力を、効率よく連結部材２１に伝えることができる。 In addition, in this embodiment, the connecting member 21 is arranged directly above the under- car pulleys 4A and 4B. Therefore, the upward force applied to the pair of pulley support brackets 16A and 16B by the main rope 2 wound around the under- car pulleys 4A and 4B can be efficiently transmitted to the connecting member 21 .
　また、本実施形態においては、連結部材２１に異物混入防止カバー２７が取り付けられている。このため、たとえば、連結部材２１よりも上方の位置から異物が落下した場合に、この異物は異物混入防止カバー２７の遮蔽部２７Ａに当たってそこに留まるか、そこで跳ね返ってかご下プーリ４Ａ，４Ｂの脇に逸れる。このため、かご下プーリ４Ａ，４Ｂへの異物の混入を防止することができる。 Also, in the present embodiment, a foreign matter contamination prevention cover 27 is attached to the connecting member 21 . For this reason, for example, when a foreign object falls from a position above the connecting member 21, the foreign object hits the blocking portion 27A of the foreign object contamination prevention cover 27 and stays there, or rebounds there to move to the sides of the lower car pulleys 4A and 4B. deviate from Therefore, foreign matter can be prevented from entering the under- car pulleys 4A and 4B.
　また、本実施形態においては、閉断面構造を有する床支持梁１４Ａ，１４Ｂを用いることにより、各々の床支持梁１４Ａ，１４Ｂを高剛性化している。このため、床支持梁１４Ａ，１４Ｂの撓みを抑制することができる。 In addition, in this embodiment, by using the floor support beams 14A and 14B having a closed cross section structure, the floor support beams 14A and 14B are made highly rigid. Therefore, the bending of the floor support beams 14A and 14B can be suppressed.
　また、本実施形態においては、床支持梁１４Ａの一側面に中間部材２２を固定し、この中間部材２２を介して連結部材２１を床支持梁１４Ａに固定している。このため、縦枠１１Ａに対する中間部材２２の固定位置と、床支持梁１４Ａに対する連結部材２１の固定位置との関係に合わせて中間部材２２の突出寸法（固定部２２Ａと接続部２２Ｂとの段差）を設定することにより、連結部材２１の構造を複雑にしなくても、縦枠１１Ａと床支持梁１４Ａとを連結部材２１によって連結することができる。これにより、連結部材２１の第１の板部２１Ａを平板構造とし、連結部材２１全体の剛性を高めることができる。このような効果は、床支持梁１４Ｂの一側面に中間部材２２を固定し、この中間部材２２を介して連結部材を床支持梁１４Ｂに固定した場合にも得られる。 Also, in this embodiment, an intermediate member 22 is fixed to one side surface of the floor support beam 14A, and the connection member 21 is fixed to the floor support beam 14A via this intermediate member 22. For this reason, the projection dimension of the intermediate member 22 (step between the fixed portion 22A and the connecting portion 22B) is determined according to the relationship between the fixed position of the intermediate member 22 on the vertical frame 11A and the fixed position of the connecting member 21 on the floor support beam 14A. By setting , the vertical frame 11A and the floor support beam 14A can be connected by the connecting member 21 without complicating the structure of the connecting member 21. Thereby, the first plate portion 21A of the connecting member 21 can be made into a flat plate structure, and the rigidity of the connecting member 21 as a whole can be increased. Such an effect can also be obtained when an intermediate member 22 is fixed to one side surface of the floor support beam 14B, and the connection member is fixed to the floor support beam 14B via this intermediate member 22.
　また、本実施形態においては、連結部材２１の一部である第４の板部２１Ｄが、一対のプーリ支持ブラケット１６Ａ，１６Ｂに固定されている。これにより、一対のプーリ支持ブラケット１６Ａ，１６Ｂに加わる上向きの力を、床支持梁１４Ａ，１４Ｂと連結部材２１の両方に負担させることができる。このため、上記上向きに力によって床支持梁１４Ａ，１４Ｂに加わる荷重を軽減することができる。 Also, in this embodiment, the fourth plate portion 21D, which is a part of the connecting member 21, is fixed to the pair of pulley support brackets 16A and 16B. As a result, the upward force applied to the pair of pulley support brackets 16A and 16B can be borne by both the floor support beams 14A and 14B and the connecting member 21 . Therefore, the load applied to the floor support beams 14A and 14B by the upward force can be reduced.
　また、本実施形態においては、床支持梁１４Ａの長手方向で一対の振れ止め部３１により縦枠１１Ａと連結部材２１とを挟み込んでいる。これにより、乗りかご３の昇降時における連結部材２１の振れを抑制することができる。この効果は、床支持梁１４Ｂの長手方向で一対の振れ止め部３１により縦枠１１Ｂと連結部材とを挟み込んだ場合にも得られる。 In addition, in this embodiment, the vertical frame 11A and the connecting member 21 are sandwiched between the pair of anti-vibration portions 31 in the longitudinal direction of the floor support beam 14A. As a result, swinging of the connecting member 21 when the car 3 is raised and lowered can be suppressed. This effect can also be obtained when the vertical frame 11B and the connecting member are sandwiched between the pair of anti-vibration portions 31 in the longitudinal direction of the floor support beam 14B.
　また、本実施形態においては、縦枠１１Ａ，１１Ｂよりも前側にかご下プーリ４Ａ，４Ｂを配置している。このため、縦枠１１Ａ，１１Ｂの前側に下向きの荷重（偏荷重）が加わる場合に、この荷重に対抗する上向きの力を縦枠１１Ａ，１１Ｂの前側に発生させることができる。 In addition, in this embodiment, the under- car pulleys 4A and 4B are arranged in front of the vertical frames 11A and 11B. Therefore, when a downward load (unbalanced load) is applied to the front sides of the vertical frames 11A and 11B, an upward force can be generated on the front sides of the vertical frames 11A and 11B to counteract this load.
　＜変形例等＞
　なお、本発明は、上述した実施形態に限定されるものではなく、様々な変形例を含む。たとえば、上述した実施形態では、本発明の内容を理解しやすいように詳細に説明しているが、本発明は、上述した実施形態で説明したすべての構成を必ずしも備えるものに限定されない。また、ある実施形態の構成の一部を、他の実施形態の構成に置き換えることが可能である。また、ある実施形態の構成に他の実施形態の構成を加えることも可能である。また、各実施形態の構成の一部について、これを削除し、または他の構成を追加し、あるいは他の構成に置換することも可能である。 <Modifications, etc.>
In addition, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, in the above-described embodiments, the details of the present invention have been described for easy understanding, but the present invention is not necessarily limited to having all the configurations described in the above-described embodiments. Also, part of the configuration of one embodiment can be replaced with the configuration of another embodiment. It is also possible to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is also possible to delete a part of the configuration of each embodiment, add another configuration, or replace it with another configuration.
　たとえば、上記実施形態においては、縦枠１１Ａ，１１ｂよりも前側にかご下プーリ４Ａ，４Ｂを配置しているが、これに限らない。たとえば図示はしないが、縦枠１１Ａ，１１ｂよりも後ろ側にかご下プーリ４Ａ，４Ｂを配置してよい。縦枠１１Ａ，１１ｂよりも後ろ側にかご下プーリ４Ａ，４Ｂを配置する場合は、縦枠１１Ａ，１１Ｂの後ろ側に下向きの荷重（偏荷重）が加わる場合に、この荷重に対抗する上向きの力を縦枠１１Ａ，１１Ｂの後ろ側に発生させることができる。 For example, in the above embodiment, the under- car pulleys 4A and 4B are arranged on the front side of the vertical frames 11A and 11b, but this is not the only option. For example, although not shown, the under- car pulleys 4A and 4B may be arranged behind the vertical frames 11A and 11b. When the under- car pulleys 4A and 4B are arranged on the rear side of the vertical frames 11A and 11b, when a downward load (unbalanced load) is applied to the rear side of the vertical frames 11A and 11B, an upward A force can be generated behind the vertical frames 11A, 11B.
　また、上記実施形態においては、中間部材２２を介して床支持梁１４Ａ，１４Ｂに連結部材２１を固定しているが、これに限らず、たとえば、連結部材２１の第１の板部２１Ａを段付き構造とすることで、床支持梁１４Ａ，１４Ｂに直接、連結部材２１を固定することも可能である。 In the above embodiment, the connecting member 21 is fixed to the floor support beams 14A and 14B via the intermediate member 22. However, the present invention is not limited to this. It is also possible to fix the connection member 21 directly to the floor support beams 14A and 14B by adopting the attached structure.
　２…主ロープ、３…乗りかご、４Ａ，４Ｂ…かご下プーリ、７…かご枠、１０…下枠、１１Ａ，１１Ｂ…縦枠、１２…かご床、１４Ａ，１４Ｂ…床支持梁、１６Ａ，１６Ｂ…プーリ支持ブラケット（プーリ支持部材）、２１…連結部材、２２…中間部材、２７…異物混入防止カバー、３１…振れ止め部、５０…昇降路 2 Main rope 3 Car 4A, 4B Lower car pulley 7 Car frame 10 Lower frame 11A, 11B Vertical frame 12 Car floor 14A, 14B Floor support beam 16A, 16B... Pulley support bracket (pulley support member), 21... Connecting member, 22... Intermediate member, 27... Foreign object contamination prevention cover, 31... Anti-vibration part, 50... Hoistway

Claims (9)

  1. 　一対の縦枠および前記一対の縦枠の下端部を連結する下枠を有するかご枠と、
    　かご床を支持するとともに、前記下枠に支持された床支持梁と、
    　前記かご床の下方に配置されたかご下プーリと、
    　前記床支持梁に固定されるとともに、前記かご下プーリを支持するプーリ支持部材と、
    　前記縦枠と前記床支持梁とを連結する連結部材と、を備え、
    　前記かご下プーリに巻き掛けられる主ロープによって前記プーリ支持部材および前記床支持梁に加わる上向きの力を、前記連結部材および前記縦枠で受ける構造になっている
    　乗りかご。     a car frame having a pair of vertical frames and a lower frame connecting lower ends of the pair of vertical frames;
    a floor support beam that supports the car floor and is supported by the lower frame;
    an under-car pulley disposed below the car floor;
    a pulley support member fixed to the floor support beam and supporting the under-car pulley;
    a connecting member that connects the vertical frame and the floor support beam,
    A car having a structure in which an upward force applied to the pulley support member and the floor support beam by a main rope wound around the under-car pulley is received by the connecting member and the vertical frame.
  2. 　前記連結部材は、前記かご下プーリの直上に配置されている
    　請求項１に記載の乗りかご。     The car according to claim 1, wherein the connecting member is arranged directly above the under-car pulley.
  3. 　前記連結部材に取り付けられた異物混入防止カバーを備える
    　請求項２に記載の乗りかご。     The car according to claim 2, further comprising a foreign matter prevention cover attached to said connecting member.
  4. 　前記床支持梁は、閉断面構造を有する
    　請求項１に記載の乗りかご。     2. The car of claim 1, wherein the floor support beam has a closed cross-sectional structure.
  5. 　前記床支持梁の一側面から突出する状態で前記一側面に固定された中間部材を備え、
    　前記連結部材は、前記中間部材を介して前記床支持梁に固定されている
    　請求項１に記載の乗りかご。     comprising an intermediate member fixed to the one side surface in a state of protruding from the one side surface of the floor support beam;
    The car according to claim 1, wherein the connecting member is fixed to the floor support beam via the intermediate member.
  6. 　前記連結部材の一部は、前記プーリ支持部材に固定されている
    　請求項１に記載の乗りかご。     The car according to claim 1, wherein a portion of said connecting member is fixed to said pulley support member.
  7. 　前記床支持梁の長手方向で前記縦枠と前記連結部材とを挟み込む一対の振れ止め部を備える
    　請求項１に記載の乗りかご。     2. The car according to claim 1, further comprising a pair of anti-vibration parts sandwiching said vertical frame and said connecting member in the longitudinal direction of said floor support beam.
  8. 　前記かご下プーリは、前記縦枠よりも前側または後ろ側に配置されている
    　請求項１に記載の乗りかご。     The car according to claim 1, wherein the under-car pulley is arranged on the front side or the rear side of the vertical frame.
  9. 　昇降路を昇降する乗りかごを備え、
    　前記乗りかごは、
    　一対の縦枠および前記一対の縦枠の下端部を連結する下枠を有するかご枠と、
    　かご床を支持するとともに、前記下枠に支持された床支持梁と、
    　前記かご床の下方に配置されたかご下プーリと、
    　前記床支持梁に固定されるとともに、前記かご下プーリを回転可能に支持するプーリ支持部材と、
    　前記縦枠と前記床支持梁とを連結する連結部材と、を備え、
    　前記かご下プーリに巻き掛けられる主ロープによって前記プーリ支持部材および前記床支持梁に加わる上向きの力を、前記連結部材および前記縦枠で受ける構造になっている
    　エレベーター。     Equipped with a car that ascends and descends the hoistway,
    The car is
    a car frame having a pair of vertical frames and a lower frame connecting lower ends of the pair of vertical frames;
    a floor support beam that supports the car floor and is supported by the lower frame;
    an under-car pulley disposed below the car floor;
    a pulley support member fixed to the floor support beam and rotatably supporting the under-car pulley;
    a connecting member that connects the vertical frame and the floor support beam,
    The elevator is structured such that an upward force applied to the pulley support member and the floor support beam by a main rope wound around the under-car pulley is received by the connecting member and the vertical frame.
PCT/JP2021/030316 2021-08-19 2021-08-19 Elevator car and elevator WO2023021644A1 (en)

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JP2023542117A JP7531722B2 (en) 2021-08-19 2021-08-19 Cars and elevators
EP21954217.2A EP4389673A1 (en) 2021-08-19 2021-08-19 Elevator car and elevator
CN202180101534.1A CN117794841A (en) 2021-08-19 2021-08-19 Car and elevator
TW111131092A TWI830336B (en) 2021-08-19 2022-08-18 Ladder boxes and elevators for boarding

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JPH05246658A (en) 1992-03-04 1993-09-24 Hitachi Building Syst Eng & Service Co Ltd Cage frame of elevator
JP2004359368A (en) * 2003-06-03 2004-12-24 Hitachi Ltd Underslung type elevator
JP2011051736A (en) * 2009-09-02 2011-03-17 Toshiba Elevator Co Ltd Elevator device
WO2015015637A1 (en) * 2013-08-02 2015-02-05 三菱電機株式会社 Underslung elevator
CN207275970U (en) * 2017-08-31 2018-04-27 东南电梯股份有限公司 Elevator car bottom for shallow pit
CN209740465U (en) * 2019-02-28 2019-12-06 许昌奥仕达自动化设备有限公司 car platform and integrated lower beam with car bracket thereof
WO2020213147A1 (en) * 2019-04-19 2020-10-22 株式会社日立製作所 Elevator passenger car and elevator having same car

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JP5484572B2 (en) * 2010-06-07 2014-05-07 三菱電機株式会社 Elevator car
CN210480540U (en) * 2019-08-09 2020-05-08 常州电梯厂有限公司 Protective cover for elevator pulley

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05246658A (en) 1992-03-04 1993-09-24 Hitachi Building Syst Eng & Service Co Ltd Cage frame of elevator
JP2004359368A (en) * 2003-06-03 2004-12-24 Hitachi Ltd Underslung type elevator
JP2011051736A (en) * 2009-09-02 2011-03-17 Toshiba Elevator Co Ltd Elevator device
WO2015015637A1 (en) * 2013-08-02 2015-02-05 三菱電機株式会社 Underslung elevator
CN207275970U (en) * 2017-08-31 2018-04-27 东南电梯股份有限公司 Elevator car bottom for shallow pit
CN209740465U (en) * 2019-02-28 2019-12-06 许昌奥仕达自动化设备有限公司 car platform and integrated lower beam with car bracket thereof
WO2020213147A1 (en) * 2019-04-19 2020-10-22 株式会社日立製作所 Elevator passenger car and elevator having same car

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